The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2020
Filed:
Feb. 15, 2018
Fmr Llc, Boston, MA (US);
Gang Cheng, Nashua, NH (US);
Vladimir Tsitrin, Acton, MA (US);
Thomas Stephen McGuire, Co Galway, IE;
FMR LLC, Boston, MA (US);
Abstract
The Firmware Extension for Secure Cryptocurrency Key Backup, Restore, and Transaction Signing Platform Apparatuses, Methods and Systems ('SFTSP') transforms transaction signing request, key backup request, key recovery request inputs via SFTSP components into transaction signing response, key backup response, key recovery response outputs. A key backup request that includes an encrypted master key associated with a hosting HSM is received by a backup HSM from a backup utility. A private key decryption key corresponding to a public key encryption key previously provided by the backup HSM to the backup utility for the hosting HSM is retrieved from the backup HSM's tamper-proof storage and used to decrypt the encrypted master key. A specified number of master key shares to generate for the decrypted master key is determined and generated using a secret sharing method. The generated master key shares are provided to the backup utility.